{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0xd5529b58d557481a12da4731026975f42c4e1296a3cfca35b9a0a9d9239225fe",
    "signature": "0xbecb7c185c01231dddd737242a6fb0c0b3d7d742fe135718506c29581e92bbb2486f22596a4d053febcd39db722a3088c5dff130635ba1b51e6395aa751b094c1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}