{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x15b06bbee9ed515dcf0a483a6c266d278744f6e2fdbc7adeee99b73a23291cee",
    "signature": "0x30e2183a7da8d33b4d5ba6e6948d6397daf4923c4ee3f3b5f5e804f97743097f09510d2ab35bdf786bcfaa67165f96e783ea85b75bd751ca6a337909031295c41b",
    "signer": "0x061A60900C738C67bcf3F9Cb7Fe8f703DbEc8Ee0",
    "userId": "718327235"
  }
}