Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c94a05e5c55d01b0a9638089eed44cc6e6d7353f596eb8c8a2de45bc1b47792b' 
  AND token = 'V1PG2CbAXV46+utpgmQXYvUc5CGNxMGheGAuKd6Or0Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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