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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '924e30fde9703bcb9a8b8b92a1499a507e8fbf9851bb70d681ba754587fb2cfc' 
  AND token = 'GbtUvJ9VcTf72UwclfqQ9xVhq2rOoYlcX03f6mmylks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}