{
  "manageEntity": {
    "action": "Update",
    "entityId": "567122624",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbc987b0b775366b38d879f8e7046f69a071df881fa59f23564761242269c702a",
    "signature": "0x152ad6c3ebf85733705a6d5b13b9683d31a603a017df2cdb626b4589c4ae0b3c42f5abb42fe740adc1f3f8109576318308ec853ace719864947cb4ab939995fe1c",
    "signer": "0x6c5fAE3F9F4ecF2897DFFdc9Fd64EA7B2145a53f",
    "userId": "567122624"
  }
}