{
  "manageEntity": {
    "action": "Update",
    "entityId": "87961106",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf8c47fcc3e7cca414a9263f7702ef79c34bff1d106a8339816a1def481973b40",
    "signature": "0xfc0769d92acfcc7f5ed7022de7da438bd0284f7ea3c8e755b40cc98524032d360def85f5e21303cc63f4517cc3b8779cb6e43daeab79443cd4b547d5945ae9ff1c",
    "signer": "0x46e7101c875D60D850099f5251d848716a5CfB80",
    "userId": "87961106"
  }
}