{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293740684",
    "entityType": "User",
    "nonce": "0xf3152e229bba19a568166b6ef4a103a509a905c33a0d3c368c3eb7492990a36e",
    "signature": "0xf145ebcd5bdfa4d57bc3735b0ed01f851117fb3f51f835e348faa1ce7634ee920dca222cab75ea1174c7e50569ddd22956d164f4fec35d160cbf4a8e075bdfc91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}