{
  "manageEntity": {
    "action": "Update",
    "entityId": "946261082",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a31d032f67e844279e7b7e2490b0eecf42558c52410b1c13d18d61afc63a842",
    "signature": "0xbfd7bc6d7cf74f5edb0077ce550e00007a28387fe684f1c1e4771182994b0f0d283c5df5a4f67e5935ef136790211948e17c80ea127eb221703b6e55e403c0ad1c",
    "signer": "0x38b58A91Da1DCfDC0775d5B9D0f45b5e79640A59",
    "userId": "946261082"
  }
}