{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171637838",
    "entityType": "User",
    "nonce": "0x33cdb5cbfade68d10c4d8d117705f63b1cea321d5a62769bf0f403e9ac51ca44",
    "signature": "0x519e5e998d274d974926033c49b2587e93c4c65d5e81d0e5ba79a1373fa5546e378d293f3958c459a169f514023a7a5f73308e9d55a8f283ec3df9402f78eec11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}