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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0962a0b6969b81467926eacea275928c07dc8921a1f871d1673c68102b2fbb8c' 
  AND token = '0KIgMZRV1vIURXYPlOrz1xWlagtjL2X/aqlW8eQgImI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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