{
  "manageEntity": {
    "action": "Update",
    "entityId": "345792093",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabyhtojkfaui3mko5vmswja3575aqju23ifzyfhlungngocyygq3a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":76345954}]}}}",
    "nonce": "0xf1bdc090637b99a9f230c5fc8962972611955beb49c291812c33ee89fd37324f",
    "signature": "0x72d628745ff49e15bf9c41d271939456d61ba63fe14ba830da7054375a4efb2e1163e6a88dddbf22830f2780b7516b6597c1bfff639bd296ba1d5f429676d0141b",
    "signer": "0x441F39B467Eb5d276bD5413c62C6f97231CAFDC8",
    "userId": "345792093"
  }
}