{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320580",
    "entityType": "User",
    "nonce": "0x71ededef31bbf4642342f0c4c840aaaab113c48411db133d958d97fa97460983",
    "signature": "0x0ae1498eb7ef669a23b02b302e4fe6553444827fea4ac2b38d6a58e666f3a192607ebcc5feff3b8f7d337d45726266c1b85e5b467f1a916d8a4d7f58dffea3021b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}