{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143295",
    "entityType": "User",
    "nonce": "0x92b7871bac2bc2668aa4bc75c1d0edda4ed812fc97d8e33d6d33c6aced21994a",
    "signature": "0xc6a7436d8123748f0e4868a307c751609580e9f9078d7a91c4f2f463cc1303af037ea7033700a1af3d6b6f16261691b55d5744302407bde06edcc34bb8ab82741b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}