{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x2d216cc546bc87db0a818c8f4d38289fc2b0d2c1173f653ca9a599b6bf2b5ea2",
    "signature": "0xb99920faaa5cb76135a0273ed9c27e8a2fb0ff7b5064832dd1ba68f273cfb4a144df6ff8ba4487d484ef75013447fe23c87d61a700a00177273516ad5b7f3f6b1c",
    "signer": "0xE09A95aA63d8B1AE975406d646074B73ffBD4ACC",
    "userId": "27841"
  }
}