{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xa66fdd9e6936fcb1b870fdb37d2ce1b67a87f989523819c352ff09d897d753e3",
    "signature": "0x7c526049df463ce036aac08d9a1b9312a5d3ad3d438930b15a6d8e4489d065820a1a2126ca96da052001a34678b614432c2293c055d1f9fa19facb49eedbd8721c",
    "signer": "0xd743f27Fe67e4d7CAa0d8D48e64a78dD364B7c67",
    "userId": "157919"
  }
}