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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b07aadde1da192928c50680e1f6458cb57d10ba3e2542f1330efa075d28268e4' 
  AND token = 'wi1/sAJHkCu4EvNKokvPkC2a1TZpxf8P5ckJUE13sCs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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