{
  "manageEntity": {
    "action": "Update",
    "entityId": "265189213",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9017c21dee3e8cbde0921b3df4fa4eb4e626afe8cc34da955b474bc785ca6144",
    "signature": "0xc6ae6443dde3754b248e627bb2212b3ebb367075467b5abd6d05e70338fc9d041c50f3f71c925197382b6b22f8d19fda58a74416113c351612d339e49b6b40d11b",
    "signer": "0xf856fE0eE1D21662eAe6D250B3A71f2e1221C79e",
    "userId": "265189213"
  }
}