{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140587",
    "entityType": "User",
    "nonce": "0xeb2fd9ab0c29abdac86f28f3ccc92dd387549ca91d4c3ebfaf3bcdb6f2881635",
    "signature": "0x8d9b9023f30c8df93640078b06c537bfa0edc49216ae9d329966d5a9bfb6178724ae77b896e9b1b5534733ea73cfaba88974f5e3b2c7ecd6628e769b73f864461c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}