{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991821949",
    "entityType": "User",
    "nonce": "0xcc39f04856a021e99086fcabd50228a7b1e43e8fa7153444b4d888028fc9933a",
    "signature": "0xae7e941b9937a3f5cd56b974e4c0a9031f6e4d662b44af00ac9f5ae62a2b42a84fb8cebcb1df71f48ce40018aa9989417abb6d10cf4835217ca79efd0657061d1c",
    "signer": "0xB37E6e788b6A39dCDcB53bf8D70077f76F5F5C26",
    "userId": "895209133"
  }
}