{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "723085841",
    "entityType": "User",
    "nonce": "0x1fe17fc08dc8908fde5211cfdc8a8c409f6d05db6b4fa5744002c106b58c52e2",
    "signature": "0xd5bf7934e01914050e4f51cd98d203111ba418e3ea2d110b97d345db004f5145389862a78a601430c7a3b603f0d3465bdca0e0c4407a561b16ee7d7e839b59571c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}