{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7158",
    "entityType": "User",
    "nonce": "0x7fd506b28be8d12f9e2c0376e2e7f8c03ec8efa87e7c05c45c90ff505f8e550b",
    "signature": "0x64b052e612a89d85ce5a7db8a4c90a830433f6f3b9c42261c57ed367ec43d2d400c1e28ccf386d2bafbb19fb5b8f6949c204fcd0de6bd2a7a38ed1f403def3b61c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}