{
  "manageEntity": {
    "action": "Update",
    "entityId": "634756955",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde9af735703e98e9c79004bb6f9107562ed784fbe9127e0d67e18150c4f3d0d1",
    "signature": "0x70cdf297aacd3afafe18ca775ae9f466792e8453e561847ad83da8c3f29020530822475ffeaf8194b10267fcb318ef2bef9eec2571a0f65879ff170e0598565e1c",
    "signer": "0xD16c31E6c8847E88ec9642f646AA5A3DC3509d8F",
    "userId": "634756955"
  }
}