{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0x3dae3d96311063bd22a8c1f33a26da7e845b5271fe83a279699c81569b7a25b6",
    "signature": "0x6249615b2c68e0bbbca1328985816372fe474ae543cc384d2ec4d1e1c727069e7d1ae921be6a0908c5200b055820a68232806eae726d054b2f3541f97dd754371b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}