{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2b82f588a12ba0b10b69b29c1273284f486bf95faaa9fab45462de1fd20bd457",
    "signature": "0x0e327476e7aa4dfaa3a23a92f15f92d814dbd86a5364d5075a5deceb2983d7ce140c6f17223510ac5e85c7735c477d8c08eebbeea56d4717cee2ba2ef9b8b4bd1b",
    "signer": "0x7EB9BADbB225C61Feb02f1C6E9FDf3Ee544E8b2e",
    "userId": "741012897"
  }
}