Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b4cebc2571b42d0b1b576a191991bf662e251664f3c84667be39982bcf4b735e' 
  AND token = 'CNGvTyPEqkV46P7VmIF9l3TUqGvQdc13pk0kAl4L9DA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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