{
  "manageEntity": {
    "action": "Update",
    "entityId": "426912480",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x60e953665c6f5340275c690660788610e35180a81dc3bae6b2fbc6e2bc5273dd",
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    "signer": "0x2894556dFf754e2CC414d20911061EED921C0C75",
    "userId": "426912480"
  }
}