{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "286724",
    "entityType": "User",
    "nonce": "0xcb6ec195272aa774183c4fae52260840273675393546117fefadf13b15da41cd",
    "signature": "0xf7ebc778f0b515878bc254b9b55527755f2de4d9834102df7e03f1989e44e18f6fc8b0eae10ab18e2c4f0cca91be44f68fdc63b705815f4b6bb75ae1d10f8fca1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}