{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0x550b6f404557738b8300f68d8fe9b18b91c583a0a98a3abb24b6128dfffab26a",
    "signature": "0xf7815cdd6651df2974b303f206fc2479c3475ddf46957a8803b509695cf3087f768342d3b91ac105bd0ee0ae3dd205744db541047a287f0d7baa1e92d77903471b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}