{
  "manageEntity": {
    "action": "Update",
    "entityId": "429311703",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6419fd728d6ae64146fb7e8c9292759876441a4575904bae6fd7bf3dfd683a54",
    "signature": "0xd7c22de3765147f03dfaae2a90be75446e7a6b3c9dc1dbe86a1b679d2680170114f09d54c12cf9a249c4d56cda5396b422d1249b6646b2df15f9da69537e40c31c",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}