{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460503860",
    "entityType": "User",
    "nonce": "0x575f290921ba1522f90c1e3d157f96befb27124856c1b0acd87e398b64271f4e",
    "signature": "0x84319bfd4d7e5135e316ba7b889ae546d91eb9b73546ec56a89371b2b9332e5e4c2f11d50350cef1162337f03edbece6a5e09b69967f7968b5198aef82d5adec1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}