{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf82aaafdefa381d99f4dc92c374ed3c46f5a6375ad268e6de052d80f5cb7d1ef",
    "signature": "0x548cd85f8fc419faeea9ab677afc84a43cbe2c56731fd826f007c239765f30cb0c4ade0c398873c03c800e88e9bfe20c011ab92eb72a84e156f18eac0f77046c1b",
    "signer": "0xF3daFB26A3117Eae86f7Ae27BFB4a982CDfa4C28",
    "userId": "31322821"
  }
}