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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aa9e7fde1b3689ab8cdfc5874317f26c3d7846f3ff9eec58cc48aa4fda660edc' 
  AND token = 'LW6od/+N+k7wfoh01ruMcb+Wmr3+kFNULai5zf3q8BI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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