{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137120",
    "entityType": "User",
    "nonce": "0xef053d496872a24f4c7e29fc7db4ddee237f49a135cc9f4ea1266e10019c69bb",
    "signature": "0x45426f453d21ae5dd3eb37a56097e3a51ea21494dce66cf36016b29561b758d00f46fdbabe8b6b3b88b1906f8189f5705299bc147144d10cc1ff38bae7110f501b",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}