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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '832fc2891670dd5bc12635179e7f7e37d215f4def5df04798ef67531de586580' 
  AND token = 'd50Cndq7j+Pl1teVL4ByI/Po+YoTMJO2r2++PT06esQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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