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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80b48dd3fb26b35bfb83c95d92dc07f135ec2809c8f69b64544502174916a006' 
  AND token = '9kam73XssTFfzCdDQ25oirx43hD/GteK0J2ozGrJ9Og=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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