{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90610656",
    "entityType": "User",
    "nonce": "0xfc5af1588da7bd5fc98c23e855674127c5be334f209144ddbb9c1012ae142d92",
    "signature": "0xa3f9eb8b8de05758ee2fd4c4c1339b59d4f5ff537a6779beb5f96812259c3e934b54208f7b1809b993e6b5d9fb9de1144591893b9c0569926e7bc020cf9a10a81c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}