{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x9c725edb719c8c2af3f5419dedf1bb95a1f8d84b19abca537ec6bf3ef799cb45",
    "signature": "0x37784a97c6c41c79f9b1809f5602b909e9038f9bf521088ced6bf11e1480051736443318a9aed331dd6fcdf1decdf8d9188a9e6fd563a21497b5c37725abe7051c",
    "signer": "0xa0c0216b7895a5D5d1C6bA31e0c046Fa7dc5B88E",
    "userId": "252885271"
  }
}