{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511688",
    "entityType": "User",
    "nonce": "0x7c15ceef2e07ad205f23fa1e778a7b502485fbd863b9c2dd66f2c6516d2653c2",
    "signature": "0x7b82b13839918f74f8283d6417dda0d7b4172a7e812372e3d400809dd6bcc81d7ecaec7e7e47e5c0aec0467b4d0da9236f22bdc8314ea3a76b18c8eb43fa22981c",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}