{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451691735",
    "entityType": "User",
    "nonce": "0xb555dcdb9c7a7e14eb202c090876b206f3ea3c574ec220a6d9aada6585e09b9d",
    "signature": "0x1b675782b78d91a23d1f7cbe50577efc08d5dce9291fd9ff7bb84e2bc0000dc32ef58d9a1c5efda55f3cf360c8b8a6c9834e0a924ad8712c10139119b6374f7e1b",
    "signer": "0x4611Dec6A3065fb4F7A23A8F14C1c300A8Eec7C6",
    "userId": "650714154"
  }
}