{
  "manageEntity": {
    "action": "Create",
    "entityId": "176836208",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Nice\",\"entity_id\":1802612042,\"track_timestamp_s\":60}}",
    "nonce": "0x39ad4f96cf3a29fcc2d7cdcbda3c315d8f9928ba0c399a6e6e36bf88e6683ea7",
    "signature": "0x0797b803bcdc3007cfa984b670ff655df0d3843d8269b568908bd4ebeb696d9f26cb9ca3e89920a8a975f4a5738cd0a021c94202bbcf04d37c530d9f2bf120bc1b",
    "signer": "0x7Fa5a67C00c48DCA54f12c80579B583FcD79a330",
    "userId": "527480232"
  }
}