{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x63e09813e7cbac72477dda8f997eb2546e2c3c1e68cff714543b501b1b76434d",
    "signature": "0x7a2e5c9e1caf4497b4a43a398f30397646efab2efc723a939b9003fd7a1b7fc939691da10e9e3097c28bc8848bd39d9662ab1d0c3942984ebcb7f818f396258b1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}