{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8537e75fa772fc300966867ff1d4fdb6199e282a4aca37865ee96d5edfd85f3a",
    "signature": "0xcc4a6351bf963a60634edf90cca98db073c5cdc7a085bb0327432ce77c1adbc2278bfbce7ca4a4beccd1eac6c7c24870632d1a3b2f6e640f3921b15f1e5a90761c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}