{
  "manageEntity": {
    "action": "Update",
    "entityId": "357831760",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5040a3a2fe109a66fc8e3cfbcb24efe7425b5c2b29c66d12f2f4749e18937f35",
    "signature": "0x24c4fc7342fc029788d075b0d7c8d32d7b0069d6c9d8f7036dfff3f3354a3c07711b5b5f7c2b2b02d8aff17044c501b8f0fe2090e1757a36d085e9b5b397d3ff1b",
    "signer": "0x1d62e42809e870aA852d9Ae62626c0320a12c2Bf",
    "userId": "357831760"
  }
}