{
  "manageEntity": {
    "action": "Update",
    "entityId": "715573876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraugggxe3osdjhp25pcqute2bdx5wssuafun3ah7lnmq3ernvfpoyq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":629154592},{\"type\":\"playlist\",\"playlist_id\":375592719}]}}}",
    "nonce": "0x55c30933c5d914f3d6b0f58b5ee65b61f4fc29d0466ebd8c21e01f49264bef68",
    "signature": "0x3372b441990a2a37eb5d061823df07499107ecb9d80163322ab70ebb09c5ece16e739e7d400a0f74d0231bb9b3987c203d25f879b707a56d9052a8742dc952c31b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}