{
  "manageEntity": {
    "action": "Update",
    "entityId": "852883825",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x600d4a954343b348c4ac227690bca690e427c3128b678830635bd05c30e427da",
    "signature": "0x18e3e8b1948a78227e1777fb176a243cc5fc3735a808a3adfb0eee0a55bd01311fd2c0b5a1001fd41c069ccdfb2d9958941d9c13498fc2f07cad41d401ff3f0d1b",
    "signer": "0xAea32e7d0e6E7Afc831D1E7B094B16Ee87661226",
    "userId": "852883825"
  }
}