{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "569571925",
    "entityType": "User",
    "nonce": "0x6341e821f3ade9e2f10437da00dec591876dd8915d1c17fc2f0f5bed2ffb56c5",
    "signature": "0x4f042cc30f1361a0e069d8471ca0e307dd25b603386a76984b3450f827ec6228338340f1fedf6ac8867dbf534f53e64db16e9798c335abcdf0f65d4bcd95c67b1c",
    "signer": "0x833ef27c5e676B068b59D1f7945C3183e1756C2c",
    "userId": "411919841"
  }
}