{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe7e63f802e868b4f663192420da2b97775fce0b3639edf5039075ea5cb0e8b1f",
    "signature": "0x6b768b0b2e2165d5f1db2d857a7c9cba3e15f3f91dea16411f666e114f4cfa9b4433b75cd55784099684c78392406306deba7c43505804e3841fac45c23438a81b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}