{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1449517",
    "entityType": "User",
    "nonce": "0x4a95724270635e0bf3cc1181243059cd000171a3462667295f3d91d48bf001f3",
    "signature": "0x768ea12ee749faada2fcb369ab1ed349a0a3908d01a44a92f2c137000c35a4a2018dd8a48425f0d89897ba5f14d519e3ed3b7baebce443357e9083c670d41f3d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}