{
  "manageEntity": {
    "action": "Create",
    "entityId": "890611170",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Cool\",\"entity_id\":385523506}}",
    "nonce": "0xe744d30b53d8abe37f79693307cf09b8c40ceb95ca59de4c9ba83db32c779b25",
    "signature": "0xe2f9457611d6b88ceb7b6b00177854420a2b64f313ae38cd0188472b531a52081092686d915104aa48986f066979a6733613dd2b7ce31ed4018984d1b7af7ee51c",
    "signer": "0xAf1f176E32866fb97d822F6f5222061aF11ef652",
    "userId": "954117045"
  }
}