{
  "manageEntity": {
    "action": "Update",
    "entityId": "568870688",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82507728175323e0034f2d921453b194d7615d00ba69b1a7902e57b151f27127",
    "signature": "0x5da140567be5369577a1f64969ad049e11d5c3c9a2c9ba9129dbee8e2947706213098dea4b5e80c773ca938728d03d9ebd389385edef1e9d740dc4f65a947f161c",
    "signer": "0x835055DF117EAed14327b39470Da45fBC7EDDA77",
    "userId": "568870688"
  }
}