{
  "manageEntity": {
    "action": "Update",
    "entityId": "902169117",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x239cc0eecbc0d5ce6766f22229ba6f89f8f07bb2304ba427a8adcab06f8148b1",
    "signature": "0x7687ab163f4e2fc15c228ab3fe98373ded5b16eb45b19108037279658ed5c75d67b2f1abbf978cf7f7f171673f971471acfd06c013a0e7adf41ffdf045238c831b",
    "signer": "0xd735d11B4b1d01322F82ab617a91cc8c0dCd66bB",
    "userId": "902169117"
  }
}