{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "765649779",
    "entityType": "User",
    "nonce": "0xae760ff62baebf91bef430ce66b013a85b284630f51181ae65bbe03ca38ef5e3",
    "signature": "0xb1afe952e32077e3863e2230d587ddfda2411523f0cfb70e99408617dabc8c906175c8646a267377feee9527a240bf27fa4fede3efade2c59f63e420471283641b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}