{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x8f9b8113446abc0d0f638c1f48088d3405c9c78c31451cf6cc1bc94878948f4f",
    "signature": "0x454f34db9bec55e727da77fe8931c699fd1265da1c9634be105dffd255b1c8db0bf85149822e197f2c50aa14ff0952995e7063f694610b0d109b6412d4b8dd6a1c",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}