{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "753839306",
    "entityType": "User",
    "nonce": "0x1135aa898c0785a325cabdc4f00040ba3150a5c3920dc418f7d3dcc04b42c78d",
    "signature": "0x734509c6f8285c81b7e531dfbfd4350fa248046981e047695e7d340e5411aa42283a751ced53398a677c17d1bf03f8cec67d64c6ff7a2ef87b7de7f88cb364ce1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}