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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ffd145025ff22f3b199d4ceb5fd04dc7dd2ec23a0e26a6b6ae20fce1c10e6ab3' 
  AND token = 'PQ38HbME0t61LN5s4nH18XleoIfSzgR3wJV+mOiLXos=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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