{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33988",
    "entityType": "User",
    "nonce": "0x72a975366eb0a30fd352410deda38a0efc7b00f6d16d87665e90a0bdc7d013e7",
    "signature": "0x3d12e18fce22c5b92c8ea1aa41f6794799b500b39b9b030f2ae9db1edf428101389d9b1d9a2f533a7562e91ac4785b739286e96db778f8c97b3d4dbcab671ef21b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}