{
  "manageEntity": {
    "action": "Update",
    "entityId": "462797167",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x66eaaf86b1dd62a71d3bbf824e5e32128f32a80fccc3baa8ebd003895a6a6e8c",
    "signature": "0xf446363a2759bc54fd002edb97a211826b1a866c1c2866fa09eeb91c1db248d81d8322474721d9c9a5b1f533e6f586f5e25b1542af36e40a14c0da6f7b814d2a1b",
    "signer": "0x8012AE2aEC2a84E2E1aF053e127e1017098A8515",
    "userId": "462797167"
  }
}