Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e126843520e72bfa6a637ca3db1a830a58aec4bd0a9887f10ecc433801e959e4' 
  AND token = 'zLUqIARZ6BjB5fNdbMAJJEaAPcnkD/ZT68dB0VMUTA0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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