{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329863",
    "entityType": "User",
    "nonce": "0x7d8553bb5e766888bc6ba38b778ac4b944947e9e01f97dc56344c332970b554b",
    "signature": "0xa5656a35e0c7e5a9a8a2a12a1f4b53abe185389d9d6f1461b8aee5dab8928109562db203e17cc531933f53068f11a4fe332e4107a388cf11ca0f7f50a81f3af91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}