{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328183",
    "entityType": "User",
    "nonce": "0x1cdee33bd7c7a772886d251725763d9c3b463cde25a07d47b8e652bd82d1c78e",
    "signature": "0xb2971ae76a85e18cec05f810c52f5424d51f5f029de2b203e9c98ba78e368c5118d9acceb54c07004fc9c0c740b096444ee4487fef8abcb146fbff71322ad7c61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}