{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x66170b83a30c039340ee8a2ebde3b519cf625ec5002ba5894f9f3d0accb6192f",
    "signature": "0x680443afd5c59612e2990546a9953131dd4d7c1af8991b378331d801ab0a259d4c2331f2709cd7bbd316db1a53e92cccc00b64729b6cc20d4bab8bdbac7f23da1b",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}