{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaaea5503e0108521b65468dddf71d4d2dbad5a8950d97c7c1b8679352b2483ba",
    "signature": "0x0b2cad65976fdddf2624c6897af5e7184273774b9d4e1724a700ae89ba2910651920fc2fe48cf61e13f35b87eeafe914c2025e5211ae4536e824dae202707a971b",
    "signer": "0xe4920563a44aCfD361D693eF2e725E42bBADF928",
    "userId": "933918061"
  }
}