Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1ea19ae0324b28f792ee3ea0b479c805392515bc8c2e2a06f241bee051d738eb' 
  AND token = '29Ga1I/2vt/Vcr9bTi089jLxzpYN63GPS+4Ot6tnPss=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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