{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332174",
    "entityType": "User",
    "nonce": "0xc90ff1ff140deeac5c1a37421af16c7fbe9b1cc7eca02d56c96ce09e4ff2bb10",
    "signature": "0xff2ca086fd889775045f17ac65c140c6c01dc272fcf3e1ffc65e1e563645664465b74f6f4218edac2485a34e6708ff9fe0b609305b6e530991c489b4a69dceec1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}