{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xea54aa78c95370f837b2f7f3e05711fa703015fb3da7a1e71c1ca78a29ff3c14",
    "signature": "0x9b16bd5ded96928965be255ed7379e6fae205190d6a87251364d64b52eb8dfc752a0d30a84e89691d1cc9f0211be611cd9c982255a33459d8534dcad17b03b591c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}