Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7eb559d519ceaff331884f44ff25c76f09795c5636397a544c2eadc2c91f0d50' 
  AND token = 'gE4ZLxiXfyiqybe7oefSGl5axfSny1iaPi05BMqGQD0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}