Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5507b3ca94268a7eb7e5471de8e9116669721ddc8496948573884ce802ed72c1' 
  AND token = 'u14KuFt4fvlyBvn5g3nOVCYk/9s8255J2Xn/wCpARuQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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