{
  "manageEntity": {
    "action": "Update",
    "entityId": "733215727",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x584449dd816745716ecda465cdfb6c9d7304b42174b2a1f1f6bcf68c0912f0c2",
    "signature": "0xe59b6ef390352e952f9eb2b3a27b58ce57c61c10f3aae08950f8558978f1d0311e03c2347f7a04b3db2578f9311de28c5bc0f756940003f6518cb66873ddd9b01b",
    "signer": "0xA275D81CF2e99e1CBCEEA244Fa82421501e665Bb",
    "userId": "733215727"
  }
}