{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752240024",
    "entityType": "User",
    "nonce": "0xc8aa319ed0342914d43c2fda61b6f4e351e847f65353b29f78e3b72fbf218249",
    "signature": "0xaefb1630081ab9ed1285a21fbaef2297c6496543a81bad006162bb28745b0e1658c5b84f22d7cd7f3e3255ef3b0210b6da3691b9bed0c8abbc3b939a09d326761b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}