{
  "manageEntity": {
    "action": "Update",
    "entityId": "905328931",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9d46e665b94b50aaad70c8324dfd0463fb1aef423fe1a2ca073c63466a642c6a",
    "signature": "0xc1c95d036bb159d043e9cc9dc5c8c7cfea8034db168e1e1dd71dcffbb981ba0a755ea09cdc99f236d11100802e0d6f54d93ad6c039d6493520ba9943aec4414e1b",
    "signer": "0x9d291c3d255b974fe494F9679cb470BC6Ec7CA05",
    "userId": "905328931"
  }
}