{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "478987064",
    "entityType": "User",
    "nonce": "0xa24bd9e35b5b8327440f4dfbe4481628601f735bf10f4a489eca05bbd534c512",
    "signature": "0xa199b56ed4298be7b24f6b8eda1d4ba117bbc0452b25cfc1d581dce665a6f40a7e38d308e3af9942230e4c17c2dc20e3fede08b6c98a68bee56b048311d02c651c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}