{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241799",
    "entityType": "User",
    "nonce": "0xb87816d71e6239d9bcc2d2c93c657a88da80e024c72d2b7eacd0c09f18c45115",
    "signature": "0x02bd15db5d76992400637752b34579019582632c698da08c64954b250e321c294adac5fb0641023d1f7faa8f406e9e0a6a4f6730066d713796356b5934cb0b771b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}