{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781298266",
    "entityType": "User",
    "nonce": "0xdcf00888c40fe897c6ff9073eb941561831390ba596084f66884e59a09b079a4",
    "signature": "0xfb63854730dfa01503082de75944d22341f30f2e2c7186cb0b75f1d7a2b752705de4f0736ef65fdc65357b205b052678ad7db756eb250a716bd3e20aac60c20f1b",
    "signer": "0x20cf64B9100CE16584AB6185C01CB9BCE51f9785",
    "userId": "485084535"
  }
}