{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74705",
    "entityType": "User",
    "nonce": "0x53b751bceae43c34d760354177d23f578a93c6208e59a55f54bb2c263a257465",
    "signature": "0x05b9b95b3ac22ca028004a76a0181efc1279c49120ac10b51ecefe4664ae1a1355bc07703dba56da2c9183e94194ab95294736d691e6069088f4d4f0197aab781b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}