{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "266099903",
    "entityType": "User",
    "nonce": "0x56ff3220d4508354857bf7f600f830fe90848264bcf2af1ee8ea13e21d271817",
    "signature": "0xe64f553097afaed30df0b2cedc03aae90dc534d8b5b3fc7ecc3060f0c66acbd857da2db15b888914f8c70f3e719b8ce66cae1338a6238d0690237768a8d72cff1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}