{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x6cdcfeb02715eedc1b51bafdbde77542e8dfab3f319ac6de3ad05b79ce30a36d",
    "signature": "0xfacafd7a2fe428b1cac88457ef66f3309ad4788a3a052277921c1d50d46de7e34066ec1c2510d0a768a724218e6a43e55eba46a352301caa98875040855431a81c",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}