{
  "manageEntity": {
    "action": "Update",
    "entityId": "325377357",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe5bd8d0394a333e90d539a181fa0b5d6867a138be0087aca6b5e314698204ea7",
    "signature": "0xa5cf7160d3ae737662c8ddd02e97e626809ce12f7c7aee87a91b0612d00cde2d739947defd50be94493300b9cd36a41a2d6879cc21d7705f8c30b7f78ac6ea2d1b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}