{
  "manageEntity": {
    "action": "Update",
    "entityId": "953234653",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xed16afb770b70e4f2fc5b22dae6b63fd372e64972ea668a8de4f24c397da9241",
    "signature": "0x24c5fdf6388d2a30d7354f92dcfed2de74c5e69e44190f84aafa7b25b3b72152601d0b55d723197155c90b01205f41c9879546ebff4c7355759d48efb4df4fb21b",
    "signer": "0x944d86d5904A8Dd79481237A4C6F03Cc9F88ddd0",
    "userId": "953234653"
  }
}