{
  "manageEntity": {
    "action": "Update",
    "entityId": "407046354",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x06b37da81f2dadcb954856b0ec3a4b8a92251871367db6825af1faaa2f40901a",
    "signature": "0x9a82b3a996f5768946e4435e50932ba2c19ee007c7d411fd7027d1e499e201483b19d7e92f5c910509e50a41bdd37a107a3eb9cd4e883ee153c52ee204b34ff81c",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}