{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41530",
    "entityType": "User",
    "nonce": "0x3c933a94104aad34d7eb98457e02bc3bfbea8446a7e448705d35a5e6c7ad9217",
    "signature": "0x8a90ed9b2387bccf6b9934fe56128a0c4b0eb3cac0a904fe52ed84d13c33e41b079c66b1cb7e8d4fac4055801a016e4b0c2ef3c038d455403a5985fae21c3c1a1b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}