{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x15cd1daa623e0efd8fd5c23e9cef1fd28d2c32bed2a96698684ba0f477a0939f",
    "signature": "0x2739f6e3b42096aa8cf7f9ad552390f9f73e09898883915d4a593b8a2881dccb02655458429268f4579f5634b77f75da3eb37222748c3f732ee4e5fe78a44eee1b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}