{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8aab188c080f2824d033c949b081054885678cef4d65a066fad4c6957f0699b2",
    "signature": "0xecd769bd296d7f9f8a6cbf199a70a5023aa8a9b482cd3b4939f7f54317fd32c614f8816563343c5212906dfdbe08f7bd5eae1581e128f5c32cf65847d51dd59a1b",
    "signer": "0x4e052D276A52D867625DaCF8a3e678436885b972",
    "userId": "819923462"
  }
}