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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1119c7d5b81f0dc65b094306b76bbc1d4fbecd0ad278a0c48539f12e3f264161' 
  AND token = 'ROL95Pmse1mZDKwaVK1/xV1yFn1wc49pF40WacJKEyI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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