{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354439",
    "entityType": "User",
    "nonce": "0x998b3c321db99811b2ef9072128543696ee1edfb1e7928bfec81cf483da9147b",
    "signature": "0x349940f9a4a8078e887e57fd28aa329948bdd8b3c07e6471cfa94ea1e5e22feb13afe49bae86d984f29d884ac043539dfb2387ab118c4863a72cc1c9198bc2ba1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}