{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xf1d5e02bfa4043a464c9122949cb7179574f73b9c28df63ba462f691589f1a04",
    "signature": "0x2b0a5c317a214f39e75278272dbc922b593cb12e4f3e2821b8058203705758a900ee0762c9c563e2ea02ebd28e5a3393196b27c5f55710a414d33fbb126a84221c",
    "signer": "0x0AC77876338a1310E24e939DC65C28Ae87A0D298",
    "userId": "415577056"
  }
}