{
  "manageEntity": {
    "action": "Update",
    "entityId": "108520320",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1ed2a2c631edf14474e834312558b1b2c9f68051dab5fcf26bd621ae060cd8a4",
    "signature": "0x0871d89e5bc0122cb3d491e5c15dcf6dd17f1416062d099058c2d23b0fe861dd72fc0e3ede088ce590e53fbe1ee2afafd6db9294699819a942a56856391c12491b",
    "signer": "0xFafA36f81706d6865F2F5a2aA1cA1c7a29eFCd42",
    "userId": "108520320"
  }
}