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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f5d06eece63b88747431ce0ef87937c013fbeb211efba7914fce89295569f26c' 
  AND token = 'rDXFM+UsY7S+PSXX0A7bmKIRpxxxLub5oow+ShieRS0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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