{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x48a86b676c095b9ee054fefa6b262d642741f7f235d93434ff32767731a2fa58",
    "signature": "0x56c351a037839f69efb0309dc096a9ab274e6639cdf6b6a40f35f81ca2505d5844c56383806ae2dc5e6fa87cba2c9aeeba175b80734721a01731ff320901765f1c",
    "signer": "0x6514Bf9E4fe1ff68cC2CbAB5C7494a2bedd3816B",
    "userId": "890617956"
  }
}