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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3000b57b7f6c99eb14e8008197a4fd2d3293f485586438c33604e36b73e0fef4' 
  AND token = 'qITp0v3jrDkfxyh/Z4dRTl4OiAYqlj2Z3JVovjkXXrk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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