{
  "manageEntity": {
    "action": "Update",
    "entityId": "402526451",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratr7blmm5aoekzufjxftsbk2k7gtcker2366relq7ilpnjbmrnqmq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":979342421},{\"type\":\"playlist\",\"playlist_id\":1104139151}]}}}",
    "nonce": "0x998357c72d2bd96155c0851b3f4cb06545cd2a1e98165f1906478e1db904d2a8",
    "signature": "0x2ed5a5b272231dc91784301e611d37fceefde6366a003e8052bd592df2d1b4a772f460e6b0ecc055b39f287fc222bcc855429498a3b382481539fa7f1712f55d1b",
    "signer": "0x3268c7e938FD368Bd958d44b728BD13025e27d63",
    "userId": "402526451"
  }
}