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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '90530eadb2b7012ee8da9ae5323053fc03c107146550fedefe27b1f0e065064a' 
  AND token = 'Z5n/bpJCtlpgOx03xqwJo+2xKnmVr9XQER2yUGS+Glw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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