{
  "manageEntity": {
    "action": "Update",
    "entityId": "480187765",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfee7e952770101bb6852191a5a9418b4874a6636caf6fba16ac7e37da84d5f22",
    "signature": "0xea9e9ec71981a76c73a5f8f1ee2ca6134ccb36b5976bfea0f2a2fdc40c01d8667353e34e4af4dfd3398662ab727aab8784ae69dac76b7dbefc82baa07d58485b1b",
    "signer": "0xFEF2036d43330DA34e7C009d55C60110a986e9f4",
    "userId": "480187765"
  }
}