{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x435c037030bb43b1eb241744a44c33f28a9ccbcd099ad6c7b5bd030f4872a75f",
    "signature": "0xb85034843dbfaf4cbe40025debdcdd08394df86118fad996eb38108ca1bba30f2ca0950c09e25e8521b0ef602cbfc9d7e12af57f5c69d2d6a2c00c904b7e98fe1c",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}