{
  "manageEntity": {
    "action": "Update",
    "entityId": "377266840",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd04b8f509109a738c6a8149b300916d1b4691a6fd6316050659d1c5ac0db0ecc",
    "signature": "0xad26e0c64ff94c99b0e32dce2b37a0fe35f0a2c565203db773c9fe9751c4fcd16b92e437be4ff6c66d92914ab516cd5200bbb856f62ee00d4a547a8d36ba7fae1c",
    "signer": "0x7F085756012AB9d28d5Bc33213B5e221bec80739",
    "userId": "377266840"
  }
}