{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325935",
    "entityType": "User",
    "nonce": "0x8b3ba4df89301fb39e1ae3abd186e568481a89066bf41a66174c35e6e431bffa",
    "signature": "0x5124aba9f442829f9232cbc8700ba1978f01c47a29b7645fad197db41fcca2c329ff809fc1d3b15e6ce2b33d96ddb8e7ef6ccec72228209c7ddabb7161cdd4721c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}