{
  "manageEntity": {
    "action": "Update",
    "entityId": "468876227",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7e4affed0e81e343388b03ae06fa0f098c7794d8a1b5a5031621403f893db1eb",
    "signature": "0x9a044d5afee9b4442655ee6a1d8e3ced49008cb143c88b29e3975f78c7afa61c1a728da96aa300ad7dd57eadfe047bc07f05a65c99ea8d422b0e83988eb3035e1c",
    "signer": "0x533b72b24827D35447529560986455a9dC6CEB3A",
    "userId": "468876227"
  }
}