{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x462a1fcba44587de19239c564c7e7e5804a198f45171aca0580cb2bd86bb2a40",
    "signature": "0x5b8fc4309ff92745672b9d0e501b0e1e310e787b10ff15abb76e13d45c54a5166e0b43bb392d3bbefd46812bfcefb26b09fbf6820d707a89ce226888c018e1211b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}