{
  "manageEntity": {
    "action": "Update",
    "entityId": "481591193",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x24ed8c3e442927444127bfbe4f045a0799daeb7f71d879337b1e2a8c582a13b9",
    "signature": "0x55c635dbd73d493f1cb6174bd78579857ba5035fb5417430f76eef548325ae856cd9b18353079988eb5396a166b1058b463ae49849461b02a9b7ddfd07604dfa1c",
    "signer": "0x9aCe0dc489fd04D91e76D8AbCCc6E288E24d8Bc0",
    "userId": "481591193"
  }
}