{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162449215",
    "entityType": "User",
    "nonce": "0x9ba0440ceecc282ef52a45f523a92e0e861484f7c161965df7265873d033602c",
    "signature": "0x0a50f846e2d4b56bc896c0e4a1408ac1beb608456a39cf23c2014432a4d006512ef77947d0d7c3bca68036f9878a8a5686e7a0020ada5cd43215c7eb71ad9eb71c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}