{
  "manageEntity": {
    "action": "Update",
    "entityId": "402461880",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x66ce6dde4135d4dd476518ef6059c95a2ad0957c571ba192797503e307682a9e",
    "signature": "0x159e3fd5a3026d901d7b884483508e8d679db845e02907c0aa24c0cee3049f3619026dd3da2a5e833baade0cb3bd7a15ca697c73059f03f6acbf16af66ce57ca1c",
    "signer": "0x294061181d09E3fA06dD3C5cE735E77E637Bf444",
    "userId": "402461880"
  }
}