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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00e6b0544087a81c3a48de3dfe9d03117ec60b7ff101c99dd7bec67ede604fcd' 
  AND token = 'ihS/J8vGqEf8tkOf/iOMrIhJDg10E8Nave78xkOrBRo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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