{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xdc8d45896dd71962e36ea83d0d456f9878a4acae636401728844c2c61f129eb1",
    "signature": "0xd602c2bb73006583932e210f29f3c44b1c4555fb2ec704dd2abe24f024f05935081cd4f31c97bc807625891a7bbc1af555d59a40bcaf8012b03d14efcd754f0e1b",
    "signer": "0xA56552Ddf7D4d833c1B3e4f8D727B787d4D1DFFe",
    "userId": "629530515"
  }
}