{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ac1c8ae53bfe0bdb6a9377085d62212b9056e65e6ab5a9908f9f8e00ac7b798",
    "signature": "0x1263fe0599d7c68ff34c3c06064b14363487f61c1dbee31d48a6ce3686e421df212060c02ff8b6fca85c3a63a899962d128fe21d2bed0b390e1cf4f5286438f51b",
    "signer": "0x97C0F2400420716C8E51fC299bAB6e9Bd2d337cc",
    "userId": "664129502"
  }
}