{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x5a9406033ed6b243afc74723090576d0a4c1c314f8464e5aa9f90760e2d41933",
    "signature": "0x31206bb386548697705e15001de7736ec7da6ba6be57eb9fcfed0a5fc0a951ac24edeb15e1a89a9d68e2c245ef3d60921346749288492421dc8e36c2b5847a971c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}