{
  "manageEntity": {
    "action": "Update",
    "entityId": "558054436",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf3aefb5e7d3ee4586bf0e614cdd9f0b1f2b05f77220888054ebb4d80016739e5",
    "signature": "0xe5c3057667f265fca5ea06092fe9cccc6854e529479ee45de1de8852399d92371107d686bdf9b7e4548b03adbcdef31cb94a090a9a32937e76316ac69a1f3b811c",
    "signer": "0xc2c8656bd0Fa090bFF4e39408ce918c2D9fA6C84",
    "userId": "558054436"
  }
}