{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10373",
    "entityType": "User",
    "nonce": "0x984114b21cea5c26238405717c494eff8439621d645740094620216683ceec81",
    "signature": "0x4ed655ead9a048ae802fabc86160e666f8432e16d647699a2bd4b603a61720b72739877180b34d52fb3819b64f2ba9a1943848c98c965d048852435b118ba9ae1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}