{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "609792603",
    "entityType": "User",
    "nonce": "0xc2f9d0515cc1b7304265ad03f1eca40eec47b453bbcfb309b7867ce20cd36b9e",
    "signature": "0xc1a8dbfb2c361dbe376022425c00a0bb70a7dcd7e094dcfa89b072f84b7fe84264c2d609ce19ce2f40f4685fb3687259331b9bc55c0eb75eaa1f5b0988bba8a91b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "103994"
  }
}