{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310196",
    "entityType": "User",
    "nonce": "0x7092b45e8446f8c6c320d6732a2a2d852d6853273e040a109b9baf04299c84e3",
    "signature": "0xe9151a2ea5994c012df62e2ed23c1af8cceb015ee2d3c35cc48c80f6da0742f50f597685a1568cf3a7438e410b227ce48ae5d4069f17d9a6b1fb774beba49ec01c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}