{
  "manageEntity": {
    "action": "Create",
    "entityId": "2005419418",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":52309,\"entity_id\":492150625,\"body\":\"dayummm!!\",\"track_timestamp_s\":39}}",
    "nonce": "0x73a25bee338aa8ea8f0a27b0491d6651b79cf88329ee66fc92d64bd011dbf16f",
    "signature": "0x63a4076804d1b9882d6578d7639e688ec0ec13371d893baee2ad754bf1bf90e40ba15da5500c528984d0e873d86c4d092ba9c1fd5f4f94864500e4886eb95f221c",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "52309"
  }
}