{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6295137d64b012aaa46c2b3fb377ab481b1c32d09b8f6391539e3235e515f6cb",
    "signature": "0x9ad7fceffdcf0accd1f7bbd8d40446f0f6460bfec76aa2467c2ac75fe61f1e2961549d9e67615d5431a79224cf9337a88b2642c4ce81404518f3887715e6b6d61b",
    "signer": "0xdCd646a0cD0410890c4847Dd128D4Ad1D37D20d4",
    "userId": "488405658"
  }
}