{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "34443",
    "entityType": "User",
    "nonce": "0x4981326481cb915e9378133b9667b8a73770fbb4ffdce43c92ef4c024f2ab0c4",
    "signature": "0x419da6292c8094fbb2b41cee78a3040d8f7070e6735e8d5085d4ccf2c700e977436b575ccbbad78a512b48ac929085ed45135b4bf080cda3075feb76431f5c291b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}