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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '41f6ddbb98c1666b4e31b4596f61a4db32c0751962cb29e19a0115f2ce46526f' 
  AND token = 'K1bXyE+FxthDltfpi+4d2z8WLcuC2t2V/0X1Dx0o1s0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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