{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330824499",
    "entityType": "User",
    "nonce": "0x613ffd029944da596ad2467a1c0e6523d67aa7dde6e089dfdb76667c5c37b2b1",
    "signature": "0xa50fca4983b31f90c86c9a2bbfc3804a14e4d587dd6888bf7f6622fb4a6ed53a69ed6274e394f05770a0138f70e9cd09113390fed066d4bf98dc956b67250af81c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}