{
  "manageEntity": {
    "action": "Update",
    "entityId": "487939004",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramxq3a5xumgqbmpdan3igl3r24xlu3sww5ciadvh4acqlhqg3pn4q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1236104233},{\"type\":\"playlist\",\"playlist_id\":1219921829},{\"type\":\"playlist\",\"playlist_id\":537344379},{\"type\":\"playlist\",\"playlist_id\":838279389}]}}}",
    "nonce": "0xb9c865dbac1530242e356e34f9f1c078f3577a271daaca05d83e40ef07f8b1a0",
    "signature": "0x40facbcc01530947676eb1f6065d7e8bb9ca8c2449babdb9d9c3e9143a87762d1b8d4c50010534a008f4ec27e95b69f1b9a0194bd8689478b6adf1490738fb0b1c",
    "signer": "0x3A25162935B033F53f1C057B6EacdFA4472E0400",
    "userId": "487939004"
  }
}