{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0xc0883b62d5e6d9575d2f5ac3837da0a42dc4972c731039d3977bcb334a4d1fbb",
    "signature": "0xdae0279da1838c7ca9c4b90480aa3741db9ee91dbba634be1248d5befb1ed6103565cbe2c370df0e3e6aed6916890431ca6a4b53df2eb40993703127665e9cdf1c",
    "signer": "0xeFC9B78A20535768B9d5BCd2702b853bd5C0789c",
    "userId": "333246"
  }
}