{
  "manageEntity": {
    "action": "Update",
    "entityId": "269685644",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraywla7lnps46m725khbngamt4k7p5apdbmakup5rlspqt6mveqcra\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2009947740}]}}}",
    "nonce": "0x9db60eeab018f2903c33eb89d79e0cd4d3bafa3d07282beb2f03c665d9059e95",
    "signature": "0x030b38a5b8bcb325ac31ccbc729d4dc3b849f7366d2db5abf0e010883afab54f78fffa256dd16760eed464930350b35f29859ddb928b49478b53d009c5ac02fc1b",
    "signer": "0x8c177d8e36C945fa5BB045974cAC50863a84fa7e",
    "userId": "269685644"
  }
}