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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '413048e9ab99e68b8c1006a2c4797640840dda691ade771897229314aba0a0b5' 
  AND token = 'LNt86cKjq3RMVbdL7tig6ZECbMu0KxrOdJjUM//GwKc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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