{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xc18a3f04f486d35c315138f83b1b2e4a5f5d8602844586ca00dea19d8b2aae6b",
    "signature": "0xb131de9921c2c40e95b93b0a0555268b261b4948640935872a0cd2cb5ab37f343f4a608d4c34d91aad633a0050d81b58df1978304f5608d63943ee00835cc7dd1b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}