{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "763473",
    "entityType": "User",
    "nonce": "0x0049b51afdaf9a47eb3658ad746f342c6d6e5163879293520412e8be1a74392f",
    "signature": "0x094993ceb1231c71166d454c823962b23d846b4b0ade1325baec4ca258fd4b07347812031ed94fa6209ee14fda49da3302af6870cac20addcce8ab72a2bbe7f61c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}