{
  "manageEntity": {
    "action": "Update",
    "entityId": "943567639",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc1cebb5210d46d2cfb834ddbcff8a080067a2003e743c5372f9612a05671ce6f",
    "signature": "0x3cf6abcc90c40fd308d671274e99f0db3d5a1bc8f3a751dda05f3ece8d2f67fc34536014c2436a2b61bb5fd04f353a04bbe66d1d078ba46af62597217e345d141b",
    "signer": "0xe971ca71b4ecd2A4076Ecc2C6d1f1cD72156571e",
    "userId": "943567639"
  }
}