{
  "manageEntity": {
    "action": "Update",
    "entityId": "40456963",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc3a22f210270654b78300a9f07b398050eb143edc5169e1ae6df1f9387de0bbb",
    "signature": "0xe1d2c1f6cfd8296eb7d322b35c81d7340c55af6e9ba0a7f8764ba6787fc75cfa63fad2c7150be2b0efbd3efcfc3ebbb3af9488388fd85d2d28e56524d50219321c",
    "signer": "0xc03B0DC91D4dd69BB843F957bAe8D3B7aA1317EB",
    "userId": "40456963"
  }
}