{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x848e7ec602a912d5fa2cc473f8a866fc9c0e86e232b1f41053a79da41fcac62c",
    "signature": "0xed9fc036468277fcb783658a01303c548e1457067da08bbf2ea6f885b27b27a875cdaf6f008b936354eb88b28d0655a00ed9159dd9af311a36d5181548511b421c",
    "signer": "0xCcA8985213E0E0B0878309EDB61edfFcB5e760BC",
    "userId": "476284737"
  }
}