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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22bf74fc41cf9cbf081866f7a0c50d8b7ba445ebeff6339a0979d0e6da76049b' 
  AND token = '64n5y/pJ6+uUHxpLsnN7UUlNdDzqt9loIR2ii7EdyUU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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