{
  "manageEntity": {
    "action": "Update",
    "entityId": "468082739",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb8590b2b5825acbec00669a72d594a03311e0deac9d03f9d679057aa2b4179f",
    "signature": "0x9ef35d6924c9df05096c883ca3d442d9ba35b927582bbf1bdf976aab00249ec220819100aed2b4d2777ec9b183fbb3c4d5ef9ccd8b3d535b0bb9c3c070f9ae381c",
    "signer": "0x3634FAB2CFa234F979DDaffFf2572b6172Ebc1a0",
    "userId": "468082739"
  }
}